William r



UNITED STATES PATENT OFFICE.

\VILLIAM R. MOORE, OF CLEVELAND, OHIO, ASSIGNOR TO F. C. BOSVVORTH, TRUSTEE.

DOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 549,929, dated November 19, 1895.

Application filed April 1, 1895. Serial No. 544,005. (No model.)

To all whom it may concern: rations in the plate A and bracket-arm b, by Be it known that 1, WILLIAM R. MOORE, a means of which the bracket is rigidly secured citizen of the United States, residing at Cleveto the plate A. This bracket comprises the land, in the county of Ouyahoga and State of short arm aforesaid, an upper horizontal bar 55 Ohio, have invented certain new and useful 0, and a downwardly-projecting arm cl, hav- Improvements in Door-Bells and I do hereby ing a perforation c, in which is journaled the declare the following to be a full, clear, and outer end f of shaft g. This shaft g is rigexact description of the invention, such as idly secured to the plate A and is provided will enable others skilled in the art to which with an escapement -wheel h and a small 6o it appertains to make and use the same. gear-wheel 2', which latter wheels are secured My invention relates to improvements in to one another and revolve upon said shaft. door-bells of that class known as the gong, An escapement j engages the wheel h and is and it has for its object to improve, simplify, secured to the shaft is, having its end bearand cheapen the cost of construction of bells ings in the bracket B, and said escapement- 65 I5 of this character, as well as to render the opshaft is is provided with a hammer Z, the arm eration thereof easy and convenient, and by m of which is secured thereto. such simplicity of construction to reduce to Grepresentsashaftarranged at right angles a minimum the liability of its getting out of to the shaft 9, the smaller end 17, of which is order, which is apt to occur with those bells passed through a perforation 0 in the shaft g 70 of a more complex nature. and is secured thereto by a thumb-nut 19. With these ends in View the invention con- This end of the shaft maybe riveted or headed sists inthe novel construction and combinaand thus dispense with the nut. On this tion of parts, as will be-hereinafter more in shaft G is arranged a crown-wheel q, the teeth detail described, and specifically pointed out r of which engage the teeth 3 of the small 75 in the claims. gear-wheel 2', and revolves freely upon said In the accompanying drawings, to which shaft in one direction only. On the outer reference is had and which fully illustrate face of the crown-wheel is pivoted a pawl t, my invention, Figure 1 represents a vertical which engages a ratchet-wheel u, secured to a sectional view of my device; Fig. 2 is a face plate o, having a back and -forth rocking 80 view of the same with the gong removed. movement on the shaft Gaforesaid. Aspring Fig. 3 is a horizontal View taken on the line 20 keeps the pawl in engagement with the w m, Fig. 2, looking up, and same view on ratchet-wheel. The rocking plate 0; is proline 3 3, Fig. 1, looking down; and Fig. 4 is vided with a hook, which engages the inner a vertical sectional view taken on the lineyy forked or bifurcated end y of the push-rod z, 8 5

3 5 of Fig. 2, looking to the lef and at the outer end of said rod the same is Similar letters of reference indicate correprovided with the push-button c, projecting sponding parts in the several figures. from the canopy or shell 61. This shaft G Referring to the drawings, A designates at its outer end 6 is provided with kerfs f, a cruciform plate, having its ends secured to in which the end g of a coiled spring is held. 0 0 the inner side of a door, preferably the front Said spring encircles the shaft G and is conor outer door of a dwelling. In the lower nected at its opposite end h to the rocking portion of the upper arm of this plate is plate 1). This latter plate is also provided with formed a perforation a, for a purpose which a lug 11, having a perforation designed to rewill be hereinafter explained. ceive one end of a wire, which leads to agong 5 Bdesignates an angularbracket, the shorter in the kitchen of the dwelling through the or depending arm I) of which is also perfomedium of the ordinary bell-cranks. rated at its lower end, as at b, and the perfo- On the outer face of the rocking plate is ration of which registers with the perforation secured a stop-pinj, which engages a pin is on a in the lower portion of the upper arm of the shaft G, thus limiting the reverse move- I00 the plate A and is secured to said plate by ment of said plate when the push-button is means of a screw passed through the perforelieved from pressure.

()11 the outer end of the shaft g is secured the gong 7, upon which the hammer strikes when the button is pushed. Between the depending arm (Z of the bracket and the escapement-wheel is a washer m on the shaft g, which separates the wheel from the arm.

The operation of my device is as follows: The pressure upon the push-button forces the rod inwardly, thus causing the plate to rock upon the shaft, thereby revolving the crownwheel through the medium of the pawl and ratchet-wheel, and in turn the crown-wheel acting upon the small gear-wheel causes the escapement-wheel to revolve and act upon. the escapement, thereby operating the hammer aml sounding the alarm, and when the pressure is removed from the push-button the plate assumes its normal position and is checked by the stop-pins engaging one another. The coiled spring not only forces the plate and its ratchet back to its normal position, but also forces the push-rod back and to its normal position. This spring can be regulated or strengthened by simply releas in the end from the kerfs and then turning said spring and replacing the end.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1 In a bell ringing device the gong and supporttherefor,carrying a shaft at right angles thereto, a crown wheel, ratchet and rocking plate supported thereon, an actuating lever engaging therewith and a spring, one end attached to the cross shaft, the other end attached to the said rocking plate,whereby when the actuating lever is released, the rocking plate is returned to its initial position, substantially as described.

2. In abell ringing mechanism,a gong,a support therefor, carrying a gear supporting spur at right angles thereto, and gearing a hammer actuating mechanism playing loosely on the said support, comprising a verge wheel and attached gear wheel, the same being actuated by the aforesaid spur supported gear and means for actuating the same substantially as described.

3. In a door bell mechanism, the gear and gong supporting standard; the gear supportin g spur at right angles thereto; the U shaped verge supporting bracket, the outer end of which is carried on the said gear and gong supporting standard; the gong, and attaching thumb nut, and bell ringing mechanism supported on the said standard and spur, an d attaching means therefor, substantially as described.

l. The within described alarm comprising the push-bar bifurcated at its inner end, the rocking plate having the hook, engaging said bifu reated end, and stop pin engaging the stop on the shaft G, a spur shaftmounted atright angles thereto, a coiled spring mounted on the said shaft, and serving a twofold purpose,both giving the rocking plate a reverse movement after pressure is removed from the push-button and forcing the push-bar back to its normal position; the crown wheel supported on said spur shaft and having the pawl engaging the ratchet on the rocking-plate, the crown wheel engaging the gear wheel 71 the escapement wheel, the escapement and shaft therefor,carrying the hamn1er,the angular bracket main supporting shaft, plate and gong all substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

lVM. R. MOORE. lVitnesses:

FRANCIS W. TREADVVAY, F. (I. Boswonrn. 

